Table of Contents Introduction... 1 Tutorial... 2

Transcription

1 AppNote MG A P P N O T E S SM FloTHERM V10.1 Upgrade Tutorial By: Akbar Sahrapour, Mechanical Division Analysis Last Modified: February 10, 2015 Table of Contents Introduction... 1 Tutorial... 2 Introduction This is a simple tutorial to help you get familiar with the new FloTHERM project manager (V10) and drawing board interface. It is intended for users familiar with the operation of previous FloTHERM versions (V9.3 and prior). February 10, 2015 Page 1 of 39 Copyright 2015 Mentor Graphics Corporation

2 Tutorial Launch FloTHERM V10 Note the new user interface, the integration of drawing board and message window into project manager Select Root Assembly and note the property sheet below in project manager area. All attributes for all objects are attached through that property sheet, no floating windows Move the cursor to the bottom of the project manager just above the property sheet till it turns to a double arrow, then click and move to resize the property sheet Note the three tabs on top of project manager area: Model Setup, Model, Solver Control February 10, 2015 Page 2 of 39

3 Click on Model Setup tab. Familiarize yourself with the modeling options: type of solution, dimensionality, radiation and so on February 10, 2015 Page 3 of 39

4 Click on Solver Control tab. Notice that all solver control options are integrated into this location Click on Model tab. This will resume the project tree in project manager February 10, 2015 Page 4 of 39

5 Click on System grid icon on the left vertical side of project manager: Notice that System Grid node is added to the project manager tree just above Root Assembly. Also note that all the control in System Grid is now available in the property sheet area. February 10, 2015 Page 5 of 39

6 Exercise Save as V10_tutorial Create an assembly Select the root assembly In the project manager create pallet, click on the subassembly icon (Simply click on the left red arrow to activate the project manager pallet: ) Notice how the new subassembly wasn t selected automatically? To change that, go to [Edit/User Preferences ] Set On Object Creation to Select Item February 10, 2015 Page 6 of 39

7 Delete the subassembly you just created, and create a new one In the property sheet that opens in the bottom left Change the name to be V10. Click on Location tab first and then: Apply data using Enter, or a click away No more Apply/OK in V10 Click on the Notes tab, and enter a note saying my first V10 assembly Click on the Attachments Tab A Attach a material from the library (library is now on far left), Alloys/Steel (Mild) - Double click to attach February 10, 2015 Page 7 of 39

8 Close the library manager by clicking on this icon Or F7 shortcut, same as V9 The project manager tree and property sheet are a bit squeezed, lets resize the window Move the cursor to the right of the pallet, till it turns to a double arrow, then click and move to resize February 10, 2015 Page 8 of 39

9 Creating Cuboids Select the Subassembly V10 Create 3 cuboids using Project manager create pallet Create 2 cuboids using the drawing board create pallet Click the Right Arrow to switch pallets You will need to draw them in a drawing board area February 10, 2015 Page 9 of 39

10 Creating Cuboids Switch to Solid mode Or press s on the keyboard In V10 now you can display objects in drawing board in solid mode too. Click on the single, 4 view, horizontal, and vertical split icons to find a view you prefer In the Project Manager node tree shift select all cuboids, and attach the surface property FR4 February 10, 2015 Page 10 of 39

11 Creating Cuboids In the drawing board, switch to Select mouse mode In a Y/Z plane view adjust the positions of the cuboids so none are overlapping Click to select, then drag Rubber band select all the cuboids With all cuboids selected, set the X size = 155 mm in Project Manager Property Sheet Select the Location tab Change units to mm first February 10, 2015 Page 11 of 39

12 Creating Cuboids Select one cuboid, and attach a create new material Call the new material Cheeseburger Orthotropic conductivity 100, 100, 0.3 Attach a Create New surface to Cheeseburger with a yellow color, call it Cheese February 10, 2015 Page 12 of 39

13 Creating Cuboids Why didn t the color change? Because we explicitly stated the surface for all 5 cuboids was FR4, which supersedes the color of the material Try to set the surface for this one cuboid to no attachment Notice [Cheese] now appears as it s surface, inherited from cheeseburger material Cheeseburger will be used in future projects Create a new folder in the Library Manager, and call it V10_tutorial Select that new folder Switch to the Project tab Right click on Cheeseburger material and select save to selected library Close the Library Manager February 10, 2015 Page 13 of 39

14 Creating Cuboids Attach a grid constraint to one of the cuboids Click the + button in the attachment tab to expand the Grid Constraints Xo Direction, Create New Minimum Number = 50 Yo Direction, Create New Minimum Number = 10 Zo Direction Select the new grid constraint created for the Yo direction Localize the mesh ( l key or local mesh icon) Show the grid ( g key) Can not see the localized mesh? Press w for wireframe February 10, 2015 Page 14 of 39

15 Work plane In the top tool bar, is a work plane tool Switch to a single window view Move the slider to show the grid at any position of the plane De-select the project grid on work plane Move the position of the work plane again Notice the difference? Try this in other view orientations Hide the grid and make solid when you are done February 10, 2015 Page 15 of 39

16 Moving Cuboid Select one cuboid, and rotate it 90 degrees about the X axis February 10, 2015 Page 16 of 39

17 Moving Cuboid We would like to move this cuboid so that it s edge lines up with one of the other cuboid edges Select desired cuboid in the drawing board window Hold down alt key Use left/right or up/down arrows to move the cuboid from one edge to the next Hide this cuboid Select 2 other cuboids, and align both their centers Ctrl select 2 cuboids, click on align tool, and select center button February 10, 2015 Page 17 of 39

18 View Selected Often it s hard to find in the graphics window, the selected object in the Project Manager tree Set the drawing board to Solid View, and set to 4 views Select Cuboid:1 in Project Manager tree Use the v key to zoom in on that object in all 4 views Shortcut to: [Viewer/View Selected] Undo Save model Click [Edit/Undo] (ctrl-z or ) multiple times till when only the V10 subassembly was made Where did we save this model? Look at the bottom of the window to find the Solution Directory listed, among other important information February 10, 2015 Page 18 of 39

19 Rack and Cooler SmartParts 2 new SmartParts have been added for Data Center Modeling Rack Cooler Create both using the Project Manager Pallet Both will default with one supply and one extract object Support multiple supplies/extracts Examine the construction tab for Rack and Cooler February 10, 2015 Page 19 of 39

20 Fan Derating Model Go to Project New, click on the application example tab, and launch the Fan RPM Derating model Save As V10_Fan_Tutorial Hit F6 to expand all Measure the Y distance between U7 and U9 Click on the measure tool Ctrl click to select U7 and U9 Graphically, move the mouse over the corners of the selected cuboids till a cross appears, then select that vertex for measurement Clear to remove the measurement from the screen February 10, 2015 Page 20 of 39

21 FloFEA As this model has results, we can export the FloTHERM solid temperatures for use in a stress analysis Select the Root assembly and export a FloFEA file This requires a 3 rd party software, from Fraunhofer, called MPCCI mapper February 10, 2015 Page 21 of 39

22 Find tool Click on the Find Icon Under Extended Criteria tab, search for all Cuboids, that contain U in their name and that have a X size smaller then 10 mm All these find criteria are in Common Notice how all the cuboids were selected in the tree Check the filter option and click Find again Notice how the tree is collapsed to just those objects Try other searches, like Heatsinks modeled in Detail Everything that is Hidden Everything with a localized grid Fan with Power On February 10, 2015 Page 22 of 39

23 Everything with a orthotropic conductivity Everything with a conductivity greater then 100 W/mK Anything with a surface resistance to solid not equal to 0 Etc. Close the tool when you are done Also try :Quick criteria tab. Summary Columns Click on the summary column icon This expands out the project manager tree, with info icons related to all the possible attributes in our model Use the summary column to check if all parts have materials attached are keypointed And check the total power in this system February 10, 2015 Page 23 of 39

24 Summary Columns Check the root assembly for total system power Summed power from child objects appears in brackets, assigned power to an object does not Check the second column for any object with no keypoints There should be none To check this column works, Edit the system grid Set minimum cell size to 10 mm Black X s should now appear in the column Hover over the black X to see which faces of the object are not keypointed February 10, 2015 Page 24 of 39

25 Summary Columns In the materials column, objects with a black square outline, indicate a material could be attached, but isn t Hover the mouse over the material icon in the enclosure row to find the material that is attached to that object Other questions. What objects have: Thermal powers? Radiation? Grid Constraints? February 10, 2015 Page 25 of 39

26 Transient Set this model to be a transient Model Setup Transient Solution Check Transient Solution On/Off Leave default settings Check continue with existing project Select the Papst fan, go to the attachment tab, and create new transient attribute February 10, 2015 Page 26 of 39

27 Transient Change the Transient tab to Multiplier vs. Temperature This will let the derating factor of the fan be modified based on the temperature of a monitor point Click Activate Pull down to select Monitor point for U1 Click to edit the transient temperature chart Define a chart similar to the one shown Ok to exit this window, and close the project manager February 10, 2015 Page 27 of 39

28 Solver Setup Activate the parallel solver [Edit/User Preferences] Number of processors to use > 1 Enable Multi-Grid solver In Project manager tree, select Solver Control Tab Pull down Solver Option to be Multi Grid Notice the Variable Control options are at the bottom of the window February 10, 2015 Page 28 of 39

29 Solver Setup Activate Monitor Point Transient Termination Criteria Select MP-U1, and set temperature to 100 Add another criteria, for MP-U2, at 125 degc February 10, 2015 Page 29 of 39

30 Model Setup Click on the Model Setup Tab Enable Stored Variables for Heat Fluxes Gradient Temperature Bottleneck and Shortcut numbers Change the default ambient and radiant temperature to 25 degc February 10, 2015 Page 30 of 39

31 Ambient Click on the Model Tab, and select the System Node Select the Boundaries Tab In the Ambient pull down Load from Library Double click 25 degc ambient In the Ambient Pull down, select the newly loaded 25 degc ambient February 10, 2015 Page 31 of 39

32 List of Some Useful Shortcuts V Zoom to selected object in all views F9 Toggle between Object Select and View Manipulate F6 Expand All G Show/Hide grid Cntrl-Z Undo Alt+Arrow Object snap moving (ensure object select mode is active) L/R Arrow Move workplane to next grid cell Cntrl+drag Graphical object copy Shift+drag Constrain object move to one direction Middle mouse button click+drag Object move only, not resize Select a viewport without losing object selection: Click with middle mouse button February 10, 2015 Page 32 of 39

33 Some Selected new functionalities in V Undockable Drawing Board graphics area The Drawing Board area may be optionally undocked from (and redocked with) the Project Manager node tree via the [Window] menu or toolbar icon. The undocked Drawing Board can then be moved over to a second monitor display. February 10, 2015 Page 33 of 39

34 Project Manager IDFPreferences Note that these settings only apply to Project Manager IDF import (via the right-click assembly import). IDF import through FloEDA Bridge is handled seperately. The default and filtering settings used when using the Project Manager IDF import feature are available in the User Preferences dialog. These are shown only if the Configure IDF box is checked. February 10, 2015 Page 34 of 39

35 Note the following options under Drawing Board tab of User Preferences windows: Display of Axis on Selected Objects Display of the Solution Domain Display of Workplane Outline February 10, 2015 Page 35 of 39

36 De-keypointed Indication Tolerance Whether an object is indicated as having one or more faces dekeypointed in the Summary Columns can now be controlled via a %tolerance value in the Summary tab in the [Edit/User Preferences ] dialog Objects that resize less than this amount, in the direction that has a dekeypointed face, will NOT be indicated as being de-keypointed February 10, 2015 Page 36 of 39

37 Configurable display of Integrated Summary Columns February 10, 2015 Page 37 of 39

38 Find Command Find command extended to have two tabs: 1. Quick Criteria. This is the simpler Find command previously available in v9.3 and earlier. 2. Extended Criteria. This is the query based Find command introduced in FloTHERM v10.0. February 10, 2015 Page 38 of 39

39 Zoom-In Model Creation Solar calculation performance improvements The solar calculation has been made more efficient, and now offers support for multiple cores. The time required to complete the solar calculation is now much improved with the average improvement for a range of models shown below. February 10, 2015 Page 39 of 39